| (19) |
 |
|
(11) |
EP 1 947 514 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
29.12.2010 Bulletin 2010/52 |
| (43) |
Date of publication A2: |
|
23.07.2008 Bulletin 2008/30 |
| (22) |
Date of filing: 16.01.2008 |
|
| (51) |
International Patent Classification (IPC):
|
|
| (84) |
Designated Contracting States: |
|
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL
PT RO SE SI SK TR |
|
Designated Extension States: |
|
AL BA MK RS |
| (30) |
Priority: |
17.01.2007 JP 2007008020
07.09.2007 JP 2007232773
|
| (71) |
Applicant: FUJIFILM Corporation |
|
Minato-ku
Tokyo (JP) |
|
| (72) |
Inventors: |
|
- Inno, Toshifumi
Haibara-gun
Shizuoka (JP)
- Adachi, Keiichi
Haibara-gun
Shizuoka (JP)
|
| (74) |
Representative: HOFFMANN EITLE |
|
Patent- und Rechtsanwälte
Arabellastraße 4
81925 München
81925 München (DE) |
|
| |
|
| (54) |
Method for preparation of lithographic printing plate |
(57) A method for preparation of a lithographic printing plate comprising exposing with
a laser a lithographic printing plate precursor comprising a support and a photosensitive
layer containing (A) a sensitizing dye, (B) a radical polymerization initiator, (C)
a radical polymerizable compound and (D) a binder polymer and subjecting the exposed
lithographic printing plate precursor to development processing with a developer having
pH of 3 to 9 to remove an unexposed area of the photosensitive layer, wherein the
binder polymer is a polymer having an acid value of 10 to 250 mg-KOH/g and the developer
contains a specific surfactant.